*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  background: url(../images/bg.jpg) no-repeat top center;
  line-height: 1.15;
}
header{
  position: relative;
  height: 1.25rem;
  background: url(../images/head_bg.png) no-repeat;
  background-size: 100% 100%;
  h1{
    font-size: .478rem;
    color: aliceblue;
    text-align: center;
    margin-top: .300rem;
  }
  .showTime{
    margin-top: .1rem;
    position: absolute;
    top: 0;
    right: .9rem;
    color: aliceblue;
  }
}
main{
  .left{
    width: 300px;
    height: 300px;
    background-color: skyblue;
  }
}